Enter cheat mode by pausing (Press [P]) then [Tab] Resume with [P].

[PgUp] : Increase Altitude
[PgDn] : Decrease Altitude
[+] : Increase Movement Factor
[-] : Decrease Movement Factor
[F3] : Rotate Right
[D] : Debug Mode : Displays coordinates
[T] : Enter Coordinates to Transport to
[Shift]+[T] : Change Time of Day
[Shift]+[F3] : Rotate Up
[Shift]+[F4] : Rotate Down
[Ctrl] : Fine tune rotation keys above